ASP.NET Code 39 Barcode Generator
How to generate, print Code 39 barcode label with free ASP.NET sample source code in C#, VB.NET

How to Generate & Create Linear Code 39 Barcode Images in ASP.NET Web Applications

• Code 39 barcode control integrated in .NET Framework 2.0, 3.0, 3.5 and above versions
• Dynamically stream Code 39 into ASP.NET web solutions, like websites/webform & web service
• Support Code 39 barcodes generation in Microsoft Internet Information Service (IIS) with URL
• Allow three modes operation of Code 39 barcode image implementation methods
• Generate and print Code 39 and Code 39Ex barcodes into Gif, Jpeg, Png, Tiff & Bmp image formats
• Dispaly Code 39 barcode image with web browsers like Chrome, Internet Explorer, Firefox, etc
• Code 39 barcode settings include X dimension, barcode width, barcode height, orientation, etc
• Resolution customizable to print high-quality 1D Code 39 images that go with all printers

• 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
• Uppercase letters (A - Z)
• - (Dash), $ (Dollar), % (Percentage), (Space), . (Point), / (Slash), + (Plus)
• All 128 ASCII characters: A-Z, a-z, 0-9, and special characters

1. Create a new ASP.NET web project in your Visual Studio.
2. Select "barcode.aspx" and "barcode.aspx.cs" in "barcode" folder and copy them to the target folder.
3. Select "KeepAutomation.Barcode.Web.dll" and add it to the "Toolbox".
4. Drag and drop "BarCodeControl" from Visual Studio "Toolbox" into the web form.
5. Select Code 39 barcode type in "Properties" panel and a Code 39 barcode is created.
6. Customize Code 39 barcode properties in the "Properties" panel.

1. Add "KeepAutomation.Barcode.Web.dll" to your ASP.NET Web project reference.
2. Copy the following C# or VB.NET barcoding sample code.

     BarCode code39= new BarCode();
     code39.Symbology= KeepAutomation.Barcode.Symbology.Code39;
     code39.CodeToEncode = "123456";   
     code39.generateBarcodeToImageFile("C://barcode- code39-csharp.png");

     Dim code39 As KeepAutomation.Barcode.Bean.BarCode = New KeepAutomation.Barcode.Bean.BarCode

     code39.Symbology = KeepAutomation.Barcode.Symbology.Code39
     code39.CodeToEncode = "123456"
     code39.generateBarcodeToImageFile("C://barcode-code39-vbnet.png")

     code39.ChecksumEnabled = true;
     code39.DisplayChecksum = true;

     code39.ChecksumEnabled = true
     code39.DisplayChecksum = true

     code39.DisplayStartStop = true;

     code39.DisplayStartStop = true

     code39.WideNarrowRatio = 2.0f;

     code39.WideNarrowRatio = 2.0f

1. Download and unzip the trial package.
2. Copy "barcode" folder and its contents to your IIS, and create a new virtual directory "barcode".
3. Restart IIS and navigate to "http://YourDomain:port/barcode/barcode.aspx?code-to-encode=3939&symbology=4".
4. Now a Code 39 is generated and you can change barcode properties in the url above, view http parameters here.